If we would place the coordinate system on the map of the Earth so that the x-axis corresponds the Equator and the y-axis corresponds the Greenwich, which of the continents would belong to the 4th quadrant?

Europe

Asia

North America

Australia

South America

Question 12

Let's say that a man walks on the coordinate system and he crosses from 3rd quadrant to 4th. Which of the coordinates will change its sign (from negative to positive or vice versa)?